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petermartn

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  1. petermartn

    4:3 Hd On Micro Four Thirds

    This is awesome, thank you
  2. petermartn

    Gh2, Focal Reducer, 8mm Samyang Fisheye

    Thank you
  3. According to my calculations using sensor dimensions, this setup should end up giving you a "perfect" fisheye for 16x9 video, with the vignetting reaching just to the corner of the frame, maybe a slight touch visible in the image. I have been looking for weeks to find someone who uses this setup or has tested it on the internet, with no luck. I found a slight bit of information in a thread about the gh3 x focal reducer x 8mm, and the people seemed excited about the results on the gh2, but the sample video links are no longer there. Here are the diagonal dimensions of different sensors (in video mode) Fullframe - 41.3mm (We will dub this 1x crop for the purpose of this test) Aps-c (1.5x) - 26.8mm (relative 1.54x) gh3 - 19.8mm (relative 2.08x) gh2 - 21.6mm (relative 1.91x) The FR I'm looking at (jinfinance) claims a 0.72x effective reduction. Using these numbers I found that the gh2 is quite perfect in theory, using a screen grab from the 8mm on a full frame camera, in video mode. Has anyone tried this?? If not, I guarantee it will be a great set-up. You should try it. I am currently bedridden until summer due to a fucked up knee surgery and don't have money, but plan to get this at some point.
  4. I'd say go with a used gh3 from eBay (about 500, maybe less) and spend more on glass, but I don't know your exact needs.
  5. petermartn

    Canon Xa10 Fisheye

    Has anyone tried an Opteka Titanium lens or found another lens that works well on the Canon XA10 without a ton of vignetting? If so, high quality sample footage would be appreciated! Thanks!
  6. petermartn

    Mk2 Different Hoods

    Thanks
  7. petermartn

    London

    These are sick
  8. petermartn

    Mk2 Different Hoods

    Why do some Century Mk2 lenses have a four petal hood and some have a two petal hood? Is there a difference in the optics at all? Is one a newer version, or do different camera mounts have different hoods or what? Thanks for any replies.
  9. But I do agree in getting a camcorder for zooming long lens shots!, This setup I mentioned plus something like an hvx200 or ac90 would still leave you a grand or two under the price of a camcorder with the Xtreme.
  10. Nikon booster doesn't give you 0.64x so the lens won't be very wide. You might as well get the native mft fisheye at that point
  11. I haven't tried this personally but the XL gives you 0.64x rather than 0.72x like every other focal reducer on the market. This makes the crop factor a perfect 1.28 rather than 1.44. 2 * 0.72 = 1.44x (just slightly wider than 8mm on a crop camera) 2 * 0.64 = 1.28x When I go into photoshop with a screen grab of a hoodless 8mm on a full frame camera and take then take the canvas size to 78.125 percent (1 / 0.1.28 = 78.125) then it leaves just the perfect amount of vignetting. So theoretically the gh4 + MetaBones XL SB + 8mm + good handle and mic is the perfect set up for fisheye but much less expensive than a Panasonic camcorder and an Xtreme. I just found this out and am excited to share. This only applies to the MetaBones XL Speedbooster.
  12. Get the XL version and an 8mm with removable hood and you will get the perfect amount of vig, just like ther Century Xtreme
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